quants-n-traders

[fast gazelle]

maybe the strat is to not grind in high school, get good enough grades to get into a t50 school, and use all your stamina to grind in college

idk radix or something

you just have to save your stamina

so you don't burn out in hs

nah quant needs some grinding lol

faang is just leetcode monkey

yea true

but you actually have to understand stuff

which is a high bar lol

honestly i wish i knew ways to take bc earlier in high school

[opaque sable]

i’ve asked this elsewhere before but what do ppl recommend for learning c++, i know the syntax and that’s about it. starting c++ role at my firm in september and don’t wanna embarrass myself

[fast gazelle]

i took in junior year but that was pretty standard

but some took in middle school

[fast gazelle]

effective modern c++

i had huge senioritis with senior year all online

[wide ridge]

what is hypsm

[fast gazelle]

harvard yale princeston stanford mit

ngmi = nvidia google microsoft intel

[scenic bison]

🔥🔥

[opaque sable]

Ty

[fast gazelle]

22 too old

[opaque sable]

Have to go relearn how to read now

[scenic bison]

Is faang+ good outcome for t100

[fast gazelle]

need to be cracked at 19 or ngmi

is that related to bel vita

[scenic bison]

@robust totem am I doomed

[wide ridge]

whats the endgame in quant? making ur own hft systems? like in faang its to have sucessful startup exits or vc

[scenic bison]

Retirement

[wide ridge]

coding jesus ?

[scenic bison]

💀

What firm is he at again

[wide ridge]

some prop

[robust totem]

@scenic bison am I doomed

[fast gazelle]

https://tenor.com/bTFlX.gif

start market maker that exclusively uses scala

[tulip sapphire]

partner

[wintry tendon]

unironically the best exit from gs tmt

[broken thorn]

what the fu j

goblin barrel/miner off screen?

[winged aurora]

isnt he at imc trading

[scenic bison]

idk thats why i asked

[winged aurora]

i think he shared a offer from imc he shld be there

[acoustic sandal]

good morning EST folks

[dry sequoia]

you're starting your internship?

[lost current]

하버드

[long raft]

Stanley Morgan 🥸

[odd spear]

how good is p72/cubist and GTS? In comparison to like IMC and akuna

[quasi orbit]

Bumping but with 5r

[autumn badger]

I feel like Point72 would be the most different

Imc are 5r are probably the most successful

But I know nothing about gts

[fast mountain]

nyse dmm, p established high freq setup I think

[autumn badger]

Dmm is more of a vestige

I just never hear the name come up

System.out.println

[fast mountain]

wait why

[autumn badger]

My understanding is it meant more when trading was manual

[fast mountain]

no what? I think they are responsible for a significant portion of liq on nyse

[quasi orbit]

i know someone who was at gts

[autumn badger]

Eg nasdaq had no single dmm

[quasi orbit]

only thing i know about it is the pay kinda sucked tho

[fast mountain]

Solely responsible for some inst, in fact

[autumn badger]

GTS accounts for 3-5 percent of daily cash equities volume in the United States,

Per google

In March 2023

[quasi orbit]

they dont pay super well tho

[autumn badger]

Yeah I’ve never heard of someone leaving for gts

Or people going to gts

But I could be out of the loop

[fast mountain]

Small setup
They only did senior hires until v recently I think

[tulip sapphire]

huh what lang is ur intro data structures class in

[tulip sapphire]

can u give me an example question

[tulip sapphire]

Ik, I’m planning to show how simple any question that they would ask is

[fast gazelle]

you’re getting js and hrt next year

[neat junco]

not true

and might depend on the team

if it's one of the core equity related market making teams it would pay very well

also the salary posted online is not accurate

at least not a general case

[quasi orbit]

I mean ik a guy who was there this spring and he said it wasn’t great

[neat junco]

prob depends on team

[quasi orbit]

Yeah fair

I mean that’s what happens to pod quants right

[neat junco]

when i interviewed at gts they asked me lots of c++, os, algo and a bit of math

almost no java

and for p72/cubist i think variation among teams could be larger

[neat junco]

yes

[winged aurora]

cubist did ask me java stuff like the heap memory model

New gen s1 s2 old genn etc

but I think just so happens the interviewer knows java

[sullen falcon]

whats dif between cubist and point72

[winged aurora]

I think it's also feasible to start off as a qr in a smaller company like square point and just jump ship

it's a lot easier to switch like this so long u r in the field

usually the requirements aint as high for these firms, so just solid dev background, some basic finance knowledge, some stats and probs, some ml

yea but not well known for tech

they don't focus much on hft so I guess not necessary to hv the latest and greatest

they only just started out doing data pipelines a few years back from scratch

but my exp with them for QR was mainly dev focused

they didn't rely ask advanced financial knowledge etc

[wintry hinge]

Yo for PM

They don’t do leetcode Though right

[winged aurora]

nope but I got into final round then the HM refer me to their tech department instead LMAO

[wintry hinge]

It’s a different interview process instead right?

I lowkey don’t even know how to review for a PM

[winged aurora]

yea for the qr first round was just leetcode then there was a round on stats and probs and financial knowledge like how to combine diff portfolio tgt

[wintry hinge]

That shit seems mad different

[winged aurora]

then there was another round of like mini code review

with senior QR

then final round with HM

talke about ml

Asia lol

junior quant researcher

yea

it don't matter

the senior qr told me he's mainly doing data dev

LMAO

like data storage

then other times he's doing research and ops

but mainly dev

yea so I feel like primary req is still good swe background

their coding questions were hard

[quasi orbit]

5 rings asked this and this question made me wanna bash my head

[winged aurora]

harder than tech

[quasi orbit]

A wooden stick with a length of 1 was randomly broken, find the expected length of the shorter one

yea i saw this at cit and jump

[winged aurora]

their hr is thrash

I talked to a friend who got return offer

he told me the hr shld hv referred my application to tech directly but ended up I went through the rounds to be referred in the end

[winged aurora]

late last year or early this year, I just grad

[fast gazelle]

matlab better

[neat junco]

was your interview with the PM technical or not?

[winged aurora]

if by PM u mean portfolio manager i didnt interview with any PMs

[neat junco]

ah okay ic

[neat junco]

i think it's harvard

[broken thorn]

write universal search and then say you solved p np problem

[lost current]

Might have to be burger flipping at this rate

[median kettle]

does anyone have a breakdown of the most profitable trading firms/HFTs? i recall seeing an infographic on this but cant find anything

[tough sand]

OS, networks and maybe minimal comp architecture

[winged aurora]

i think these are fundamentals tho

having targetted projects will be quite good

or contributing to open source projs

personally i go for projects

[neat junco]

open sourcing would be a great addon imo

in the end i think at hft your skills and learning abilities >> YoE

[winged aurora]

yea agree, its just harder for fresh grads to stand out cuz theres so many applicants

[neat junco]

yeah but imo usually if you have great tech internship it helps a lot

unicorn+flag level

[neat junco]

flag=fb+linkedin+apple+google or similar level top big techs

unicorn=top pre-ipo startups

unicorns tend to have very modern tech stacks and high engineering hiring bar

and comprehensive exposure to lots of tech stacks

[sullen falcon]

is faang a subset of the equivalence class of facebook/linkedin/apple/google

[zenith panther]

maga

[neat junco]

yeah similar level just as i said

[lost current]

it's only rope or no rope

[neat junco]

anyways i mean the skills/learning abilities are the most important factors

[broken thorn]

assfungal

[sullen falcon]

is this actually true

or just BS advice like college prestige doesnt matter

like doesnt ur first NG largely define ur career

[neat junco]

this is my own understanding

[sullen falcon]

or bar you from going into some niche areas that want you in there from day 1 eg quant

[lost current]

it helps for getting interviews but beyond htat ur actual skills matter

[neat junco]

it's definitely fine if you have some other understanding

[neat junco]

like ik tons of folks doing tech -> quant or other way around, etc.

[sullen falcon]

bruv

[sullen falcon]

okay cool i see

[odd spear]

Do you how to prep for quant dev positions? Recruiter said they will ask math and leetcode (how to prep for math..?)

[tough sand]

Ya I meant what they ask on interviews besides leetcode

[neat junco]

Which company

[odd spear]

Ur company

dmed

[tulip sapphire]

I don’t think youll ever get team/pod-specific pnl numbers

AUM (which is probs what you saw) isnt always the best metric but ig it's a good proxy

[tulip sapphire]

ive interviewed at various firms for QD positions and have gotten offers, feel free to DM me

[tulip sapphire]

Who pinged

[silent venture]

I wanted to know if there was a certification that I could do online that would help me with quant jobs

[junior lance]

What is wrong with certs?

[sullen falcon]

how is this funny

[winged aurora]

aws make shit so complicated that it takes a cert to know how to use it

we are rewarding bad design

[rare rock]

what about azure

[sick bolt]

for dev? which companies? asking cause I've never heard aws cloud mentioned as a skill that would be helpful before

[dire summit]

I need ideas for C++ projects? Where can I find inspo?

[quasi orbit]

I don’t think hft use aws

[neat junco]

hft def cannot use aws

Too much latency for doing network and rpc

[ocean gazelle]

a lot of crypto funds and smaller funds can’t afford mass colo so they host some on AWS, it could be useful then

lots of firms also use cloud computing for other reasons, like running low-frequency strategies or running research tools

[quasi orbit]

those are usually hedge funds

hft dont use aws im p sure

[ocean gazelle]

yep, its not feasible

except for certain crypto exchanges which use aws themselves, so then crypto hfts try to colo via aws

ik huobi has that

[sullen falcon]

what about non-hft non-hedge funds like jane street

[quasi orbit]

what

[scenic bison]

what

[neat junco]

js is hft i think?

they majorly do equities mm stuff

[sullen falcon]

oh someone said they arent

since mm isnt really high frequency

ie they use ocaml

[lost current]

they r prop i think

[final garden]

Hell even I use a cloud hosting service

Not something as complex as AWS but Ive used Linode

Linode is awesome

[uneven crow]

Anyone have tips on prepping for the js phone for SWE?

[ocean gazelle]

using ocaml doesn’t mean your strats can’t be hft

they do mm, meaning they have to have some sort of latency goal

you can modify things

for example, 2s uses Java and Scala for their strategies (granted they’re not hardcore hft exclusive) by stripping away the gc and exceptions and more shit

oh I wasn’t responding to ur msg ur right abt that

24 internship interviews at js already or ft?

[uneven crow]

yeah internship

[ocean gazelle]

oh yea I forgot they ran SWE off season

[uneven crow]

w24

Is there a particular style of question I should focus prep on

[sullen falcon]

prop shops aren't necessarily HFTs tho

and HFTs aren't a subset of prop shops

[winged aurora]

do u guys think it would be hard to pivot back into the tech industry if u started out at trading firm

in a sense the tech stack at trading firms are quite specialised, even when it comes to languages and tools

[fast gazelle]

well the tech stack at most big tech companies is also very specialized and mostly internal tools

[sullen falcon]

No

You will likely know people with links to big tech anyway

So you'll be able to interview anywhere you want after a few years i reckon

[frigid zealot]

Is Martin Thompson famous in HFT?

[tulip sapphire]

Sure

[ocean gazelle]

4blue0brown

[tulip sapphire]

anyone here interview for XTX markets? was wondering if i could DM a question abt the process 🙂

[empty topaz]

For the video, waste of time for the companies bro a single new grad swe isn't worth the effort to jump thru all these hoops

[empty topaz]

Idk you think he's more qualified or less qualified than the standard new grad hire? Looks good but not crazy Einstein single-handedly invent next atom bomb type impact

Oh I meant to the video of the 14 year old my b

Companies be ignoring child labor laws but can't ignore my green card status

[dry plinth]

Yeah, it's mostly parenting

So many kids are capable of this, but most parents know that childhood social development is more important than algebra in 2nd grade

[fast gazelle]

he'll be a senior swe at 18 lol

but starting corporate life at 14 is so rope

when you don't even have to

[fast gazelle]

bachelors at 14 -> phd at 19 -> amazon data scientist

[frigid zealot]

Will working at a hft startup as a software intern increases chances of breaking into quants full time?

[wet wing]

have anyone of u interned at faang before?

[frigid zealot]

sure! feel free to dm

[broken thorn]

whats the intuition for the probability being z^2?

wait

i get it nvm

independently calculating odds of two variables, so for n IID random variables it would be z^n

[opaque sable]

all that work to do crud for elon

[glossy sparrow]

does anyone know when citadel posts new grad roles for swe for 2024

[tulip sapphire]

intern is always easier and better, especially given your resume

[glossy sparrow]

I know I was wondering like when they post

oh my b

[tulip sapphire]

i would say you are better for QT looking at your resume

research is more relevant for QR, for QT it's not needed

haha you'll always feel like that

i think you will be fine given your bg

you can grind once you get an interview

it's not like you wouldnt need to grind for QD anyways 😛

i would rm co-founder

no i would rm that experience entirely

you dont want them to think you have sth on teh side to distract you and it's not like ur 4 person thing is imprressive, it's j -ev

also it's no longer maintained

so like you should have more recent suff

stuff

i also dont think that your minority stuff is super relevant for trading, i feel like that space can be better utilized to say what you did, instead of just who was involved

finally, your tools and langs line only takes up half a line and you right-center it, so maybe add more stuff

also pedantic but dont say C/C++

that tells me you dont know C++

https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3065.pdf

yeah one of these were relevant in a headlands interview i hd the other day lol

i think your space utilization is very off

[lost current]

if u like math more def go qt, quant dev is more low latency systems than actual trading

[tulip sapphire]

idk the diff between concentration and minor but surely those can be put on one line

even if ur tryna emphasize that they are different

[lost current]

i mean can't u apply for both?

[tulip sapphire]

I don’t think what you have is enough tbh (i have interviewed with many LL shops and got offers)

i think you should focus on QT but if you get rejected then go for QD

i think many places onnly allow 1 pos at a time

[lost current]

they say that but i got oa and interview applying for both

[tulip sapphire]

QT screens arent as bad as QD

[tulip sapphire]

same HR handles scheduling interviews, OAs they auto send out often so that makes sense, but i would be surprised if you were doing finals for multiple positions

unless it's some a weird firm doing a one-off thing

if that did happen, im curious to know which firm lol

[lost current]

from my exp they usually say choose 1 for final but u can interview for both at least for the inital rounds

[tulip sapphire]

o do u mind DMing which firms

I don’t think ive applied there

[lost current]

ya

[tulip sapphire]

cuz ive always been told to only go with 1 process at a time haha

[opaque sable]

do u guys remember trameski8

is he a troll

been asking me some dumb ass questions in dms

Flippant is a generous way to describe it, feels like I’m dealing with a kid but i didn’t wanna be an ass to him in case he actually was

Dunno how strict rules are so gna edit that lol

[coarse blaze]

no

[opal kelp]

Any good OS books that are practical/lab-focused?

I.E Plenty of exercises, projects etc

[scenic bison]

block him

psa for quant channel, if you get dms from him, block him

[scenic bison]

He will spam@

And can be toxic

[coarse blaze]

will*

[scenic bison]

Yes lol

[scenic bison]

yeah thats how it starts

[odd spear]

how do u prepare for math part of quant interviews? Mainly probability ig?

anyone interviewed for cubist before?

[winged aurora]

prob, stats, combinatorics, linear regression etc if u know ML u shld be good with the math part too

depends on what quant role theres also math for financial knowledge

like the diff ratios, how to combine them across portfolio, how to interpret them etc

so not just purely math math

[tulip sapphire]

You’ve been asked about information/treynor ratios before??

Or do you mean sortino?

[winged aurora]

sharpe, sortino, calmar etc, the basic ones

information ratio never been asked before

also things like skews of returns

i had projects on systematic trading, so they asked in detail on my backtesting stats and how i tested it

the various costs involved

similar experience between QT and a QA

oh and basic things like interest rate and its effect on prices of diff products

[winged aurora]

in school

and theres a lot of resources and similar projects on github

its not as diffcult as a fullstack swe its just a diff domain knowledge and coding them out in python, kind of like a data science proj tbh

[jaunty escarp]

anyone has web scraping experience here?

[rose holly]

@fast gazelle does

[mystic coyote]

What’s de shaw min gpa? Got reached out to by a head hunter, after sending resume homie cancelled our call. I have a 3.75 from a t5 cs

[quasi orbit]

whats ur prev exp?

[mystic coyote]

Unicorn + faang + research at big ai lab

[quasi orbit]

idt gpa matters that much

maybe its smth else

[mystic coyote]

All my exp was mle, not swe. But he reached out for ml shit at de shaw

So idk

[rose holly]

Ur gpa isn’t 4.0 💀

[mystic coyote]

1 top tier conference pub. Thought my resume was great except gpa ngl

[lost current]

idt it was gpa

[mystic coyote]

Oh i should have mentioned. Mans said ur gpa doesnt meet the min required by de shaw

Tht why i curious what their cutoff is

Wait. We had a call scheduled but he cancelled our call bc of gpa

So ig tht means i won’t get to interview w shaw?

[lost current]

that's a first cuz ik ppl w 3.6 that interviewed

for swe

[mystic coyote]

Shade - after reviewing your resume just quickly I noticed that you GPA doesn't quite hit the mark for the minimum DE Shaw have requested i'm sorry but our call will no longer be necessary.

I wish you all the best in your job search and hope you find a great role, i hope to be able to work again in a year or so and get you transitioned into the quant space.

Headhunter

Yeye

Oh ok lmfao

Oh wtf. Yea im new to this space. Wasnt even interested in hft too much but hav a couple friends qr/swe

Field seems p interesting tho, but i’ve heard sm horror stories

[thorn wyvern]

I doubt you’ll be in a position where u only crack quant and nothing else — usually ppl that can pass quant interviews have the luxury of choice

[scenic bison]

always the old guys with the hats

[lost current]

Good book imo for cpp

https://www.amazon.com/Primer-5th-Stanley-B-Lippman/dp/0321714113
Python simple enough imo where u can learn by using a lot

hm is there a specific reason why u want to learn cpp?

at least for me the way i learn languages is try to make a basic project

and google up syntax and documentation along the way

gotcha

[mystic coyote]

Lmao i took os w him

Btw, what are the general tips for ng swe at hft? I reached hm chat for citadel last yr for internship, but my interviews were p easy ngl. J lc easy-med.

And like one q on os but tht was p chill too

[lost current]

it's like a computer vision library

[ocean gazelle]

I feel like this is less effective for C++ because of the weird quirks that have built up

Like unless you were googling every single thing it’d be fair to assume you normally create an enum with enum not enum class

I used learncpp and it’s also redundant if you know how to code (it’s structure is also weird bc I talks about the “wrong” way to do things then teaches you the standard way)

I think the best way might be reading a minimal book with examples while also doing a project?

[neat junco]

anyone did cubist onsite before?

[lost current]

Cpp is weird in the sense that getting basics doesn’t take too long but it def takes a while and coding a lot in it to get the more nuanced details

[ocean gazelle]

this is probably the best way i could think of

but effective modern is good apparently

i havent had time to read it but its a compilation of good practices

esp since its easy to right non-standard code in c++

i doubt the certification is worth it

no employer would rly care, esp if u have a university education

also nice pfp lol

ofc neptune always got me

[lost current]

yeah

imo u dont really learn much until u build large scale

projects in cpp

i made my own version of vim and game engine using opengl

oh gg, honestly not the worst but annoying reading sm gnu doc and looking up what each ansi escape sequence does
stuff like syntax highlighting can get bit complex but not too bad overall

that sounds like a cool class in hindsight granted prob not fun while making

lmfao i just stick with one standard unless if i have to switch just cuz im too lazy to read documentation

the vim one is actually not as bad as u think cuz its lowkey just googling gnu documentation and reading what each terminal escape sequence does it just takes a while to code out the logic cuz u implement a lot of things manually

in production code namespace is bad practice imo, that being said fine for personal projects

[dry plinth]

Did someone post a problem here earlier?

If I remember correctly, it was something about n balls and coloring pairs until all of them were the same color

Someone with a Rowlet profile pic

[storm ember]

for large cpp projects u could work on llama.cpp, tons of neat stuff to do there

[tulip sapphire]

What role? I also have a not 4.0 and was reached out and sent my resume but I never got back to them on scheduling a call 💀

[hexed rock]

its moreso reinterpret_cast, if you have to reach for it you’re probably doing something dangerous or weird

[mystic coyote]

Idk, homie reached out to me for ml/systems. I asked him he said 3.85 is the cut off 💀

[quasi orbit]

Tell him his hairline should get him cut off

[broken thorn]

whats the best way to find definitions to notation you are not used to

[amber yacht]

Which notation

[broken thorn]

S_n;n>=1

but this isnt a one off issue

i stop knowing notation far before i stop being able to understand whats going on

need to fix this

[amber yacht]

I think that’s just the set of sums {S1,…,Sn} or zero index it if you want to

Hm true idk context helps a bit for me

[broken thorn]

i think im starting to get it now

thanks for help, im more trying to figure out what my go-to strategy is when this happens in general

[amber yacht]

What you can try is fix n (like take S1) and then see what composes S1

Then you have that for n>=1 so it must be a set

[weary path]

you could try reading/referencing a entry level math book, like Michaels Analysis I

[broken thorn]

thats the thing, i dont even know it should be a set, stuff like that. thank you

[broken thorn]

would you say analysis is a good point to start learning notation? theres also linear algebra at my school, maybe that could help too

[amber yacht]

Do linear first

It’s more mathematical maturity than what math you’re learning

As you do more math you’ll be able to just read it through

[weary path]

they usually contain the introduction to the notation you seem to be looking for

[weary path]

linalg prolly also contains most of what you are looking for

[broken thorn]

yeah thats what im looking for tbh

mathematical maturity

[amber yacht]

Take a proof based math course

Or read a book

Though the course will be more helpful

[broken thorn]

maybe i can shadow the linear algebra course this summer

based on this convo linalg LOL

[amber yacht]

https://docs.google.com/spreadsheets/d/1pLWwZaHUWXFAUjivWCi6go96nd3-nAFzc4XvZKNI2co/edit#gid=0 if you can read some of these notes, you can read any notation no matter how terrible it is

See the DP section in particular lol

[broken thorn]

wtf is that class

[amber yacht]

dsa

[broken thorn]

it covers like 4 of my schools classes worth of material, and we are known for having few,dense classes

ok well more like 2ish, but npc approximations never showed up on my 2nd algos class and were just to see for fun

[amber yacht]

Sounds about right

[rugged rampart]

this seems standard for dsa course

well actually where is TM

[broken thorn]

1sec computer freezing

actually i guess this skips most of my data structures material

[rugged rampart]

no turing machines 😭

[broken thorn]

so its my schools intro algos

they just throw random 1 lecture stuff in we never covered like union find and hashing

[broken thorn]

prob covered in another course

[amber yacht]

covered in 120/121

[broken thorn]

weaht school btw

also what do you call what we call data structures? where you learn about linked lists, vectors, trees, and the inherent suffering in implementing them in homeworks

[lost current]

start off w discrete or combinatoric

[storm ember]

oh yeah i was gonna share problems with you but then forgot. @broken thorn

https://ocw.mit.edu/courses/18-a34-mathematical-problem-solving-putnam-seminar-fall-2018/a17ab830c0c36ffccb7a5ae953d689f3_MIT18_A34F18PS1.pdf heres a cool problem set i recommend

every problem on it has a really disgusting bash solution and also a shortcut insight that turns it into a one liner

theres no solution manual. try to solve as many of them as you can, knowing that a quick solution exists for all of them

this trains good insight

[broken thorn]

thanks

where does this equation below come from? according to this equation

its saying
p_a * 83 - (1-p_a)*17 is somehow derived from E[X]*E[N]

oh wait

i think i get it now

no clue the intuition behind it but basically everything is a martingale according to them

which means it steps to 83 with prob p and to -17 with prob b

[neat junco]

yeah it's a typical martingale property

[broken thorn]

thats their definiiton i think

that they step like that and have EV of 0

not sure the second equation though. are we using E[X]*E[N] here? seems like we are not, but im not sure why they show us that in the notes section otherwise

unless thats used later

[amber yacht]

if you want the derivation you can unroll a recurrence

lol

[broken thorn]

haha

green book says to try it without gambler ruin, its very similar tho. i ended up figuring out first part

and i guess escond

the day someone says this in an interview i might just die then and there

[tulip sapphire]

It should, it has the curly braces

[broken thorn]

correct me if im wrong but this solution seems extremely out there compared to the rest of the problems in this martingale section

theres zero intuition for this established in the explanation of random walk, martingale, stopping time, etc

am i wrong?

i also just have no clue how this solution works, and how reflecting paths and changing the number of +1 and -1 steps is allowed

oh ok i get how it works now, if it ever crosses then there is a total of n+1 steps to the left, so counting all possible n+1 to the left paths maps to the number of times the guy runs out of change

still think its silly they give thsi problem to me without any intuition to solve it, but i guess this is more of a problem book than a textbook anyways

would prefer if they keep the number of "heres a magic principle you need" solutions to a minimum so i can actually solve problems even if i havent heard of the reflection principle before

[storm ember]

see catalan numbers

https://en.wikipedia.org/wiki/Catalan_number

more insight on this particular counting phenomenon @broken thorn

they give 6 separate proofs

[broken thorn]

surely i will understand at least one of them

:clueless:

[storm ember]

you'd see this in a standard combinatorics or discrete math class

and just identify it either as catalan numbers verbatim, or pattern match the proof technique that you like the most out of the 6

[broken thorn]

for sure

i get a lot from doing the same problem with different techniques

[runic grotto]

Anybody have problem sets they recommend after the green book

[storm ember]

@runic grotto try these ones

[runic grotto]

Thanks all

[neat junco]

Tbh just familiarize yourself with concepts in prob/stats/linalg

I think almost all math problems are some repetitive variations of these concepts

[runic grotto]

This idea is pretty general though

[dry plinth]

These look nifty

[neat junco]

What I meant was green book might already be enough and it’s more important to make sure u know the pattern

How to apply certain concepts in each variation

[runic grotto]

🤔

[storm ember]

why restrict yourself to just one source. theres cool problems everywhere

[storm ember]

?

[dry plinth]

Nah the problems are too easy for Putnam

[neat junco]

I only did Putnam once in freshman

Absolutely hard as f

Spent 1.5 hrs solving problems and the rest staring at the paper

[dry plinth]

I might do it this year

[storm ember]

i did it a few times. always a persistent feeling of "couldve solved 4 more if i studied more" but studying more was largely a waste of time

[dry plinth]

I've looked at the problems, I could probably solve around 3 or 4

[storm ember]

the profs would buy us pizza and soda though so it was chill

[dry plinth]

I'm pretty bad at comp math though

[neat junco]

Yeah that’s the best part during then

[storm ember]

it was fun to just go and solve problems with pizza and soda for a whole day

rant with your friends after each block over which ones you got or theorycraft on the ones u didnt get

[neat junco]

3 or 4 is already 🐐

[dry plinth]

Could just be me overestimating

[storm ember]

from the ones i linked?

[dry plinth]

Oh no not those

Those are easy compared to Putnam

[storm ember]

how many did u get?

[dry plinth]

Didn't count

Didn't work through all of them

[storm ember]

ive only done like 80% of them

then the others i couldnt figure out

[dry plinth]

😔

I'll let you know once I get home

[storm ember]

ok nice

[neat junco]

I remember during the year I participated doing 4 is top 300

[dry plinth]

I'm definitely overestimating myself then

There's no way I'm top 300

I wasn't even USAMO

[storm ember]

its not that hard

it is when u balance ur schoolwork with it

[dry plinth]

Yeah but I don't even do problems in my free time

[storm ember]

putnam is literally during finals or right before finals though

4 problems is a reasonable goal to go for. theres usually 2 easy-enough problems on each part

[dry plinth]

True

But I've also been known to screw up easy problems

[runic grotto]

What about the second time

[storm ember]

happens

[runic grotto]

Rip

[storm ember]

i didnt know about comp math in hs so i didnt participate in that stuff

[dry plinth]

I'm probably completely out of my depth on Putnam, was barely AIME and didn't touch comp math since

[storm ember]

putnam was my first and only exposure i guess

[dry plinth]

Well yeah it's proofs and stuff

But I'm just not great at math

[runic grotto]

Yeah they’re very different

[dry plinth]

True

[runic grotto]

[dry plinth]

This is good

That geo was the bane of my existence

[storm ember]

on putnam-fear: i recommend not judging/filtering problems by the source. its worthwhile to just collect a big pile of problems and try them independent of its so called rated difficulty to get a feel for what problems are actually within your ability

[dry plinth]

Noted

[dry plinth]

1, 2, 3, 4, 6, 9, 12, 18, 19, the others i didn't really try

I probably will take another look tomorrow since I've been procrastinating on homework too much

There's also a pretty big chance that I got some completely wrong

[storm ember]

yea nice. if anyone can figure out 5d, 15, or 20f id be interested

[dry plinth]

Oh 15 looks scary 😕

I'll give it a shot tomorrow, I guess

[hearty onyx]

oh wow

i haven't really touched contest math since covid ,,,

[rose holly]

Anyone here interview with TGS Management?

[uneven crow]

Yeah sure

[stiff girder]

hey can I message you also??

which firms offer winter internships for trading or swe??

[stiff girder]

jane street lol

[uneven crow]

yea fs

[dry plinth]

I think I've figured out 5d

[storm ember]

nice. whatd u do

wanna dm me or post it here. up to you

i have bad lower bounds on 15 m x n but i feel like im missing a nice elegant trick by looking at it diagonally

[dry plinth]

So what I did was find the number of ways a number can be assigned to sets

I brute forced the first few cases

And it was Fibonacci

[storm ember]

fibonacci in n or k

k right

[dry plinth]

Yeah

[storm ember]

thats sick. ill try it, thx

[dry plinth]

Sure

[storm ember]

yea i got it for n=1, still need to check for larger n that it extends in a not terrible way, ill check later today

coolio

[dry plinth]

Well each element can only be assigned to one of the possibilities by construction, so I don't think there will be any issues for larger n

And proving that this number is Fibonacci also isn't too difficult

But I didn't feel like it

So the solution should just be ||F(k + 2)^n||

[storm ember]

right. nice

yea the fib proof is easy. im satisfied. Thx

[dry plinth]

👍

[dry plinth]

Also figured out 20f

[storm ember]

based

[dry plinth]

You can just see it as ants passing through each other, so it's just the number of ants which are facing Alice + 1

So 13

15 still scares me, might be a bit before I try that one

[storm ember]

thats what i thought it was but couldnt convince myself it was legit. i used ants passing thru each other for all the other ones too

[dry plinth]

¯_(ツ)_/¯

[storm ember]

having a second opinion is reassuring tho

[dry plinth]

I could simulate it just to verify

[storm ember]

would appreciate

[dry plinth]

Alright, give me a bit

[dry plinth]

100000 simulations, mean of 13.00132

[tulip sapphire]

yes, i am for ng, was reached out recently by a HH and then recruiter
are you also for QR?

the 13 rounds sound painful, i cant believe they have so many, and start so early 😵‍💫

[dry plinth]

I figured out m × n for 15

||Fibonacci strikes again||

[hearty onyx]

so i know very little about the quant world

when do summer 2024 internship apps drop

normally

[stiff girder]

Most likely july or august

when did u apply??

[grizzled osprey]

sick

they do want cp exp it seems

[tulip sapphire]

end of august

which role

im pretty sure it's custom but knowing which role would let me say fs

[prisma sphinx]

Got de shaw OA today

[runic grotto]

[amber yacht]

Has quant swe been out?

[hushed thunder]

Haven't really looked into quant companies but what are they looking for in the people they hire?

[tidal locust]

how long is each round lol

[storm ember]

they should just host a round robin tourney

every applicant dukes it out against every other applicant

[dry plinth]

That sounds fun

[lost current]

p sure recruiters r the only ppl on li for tgs

[next shore]

if im expecting to publish in the next few months (paper is currently deep in peer review/revision stage), is it worth having a bullet pt. on my resume indicating that/including a link to the paper draft for qr roles? dont have any other pubs

or is that weird to do

nope

hm

yea im not even the one writing most of it lmao its research that i did under a prof around the end of hs and then someone else continued w my work later on

i wont :))

[chilly dagger]

How hard is it to go from quant to SWE post grad? Have a quant internship offer for Summer 2024, but worried it won’t be a good fit for me / bad WLB

probably FT quant -> FT SWE

worried about WLB, stress, competitiveness of job

I have a couple trader friends that are on the verge of quitting

after <2 years

[winged aurora]

i think its a lot harder to pivot from traders and researchers to pivot than general swes or quant devs

yea researchers can probs only get into data science

or data related ops

traders would be in a tough spot

even for quant traders that do use programming but cuz its mainly tooling its gg be v hard

thats true too

some researchers do databse development

kind of like swe too but dependent on firms

yea exactly

its the same reason as why its hard for swe to pivot into quant at trading firms

cuz no exp

[chilly dagger]

wdym

Might be a stupid question but how do people do offseason

Take a gap semester?

[tulip sapphire]

if it's qd/quant swe then you will have no issues, once past resume screens

[lost current]

I’m taking gap in fall

I mean I took swe this summer over quant cuz I didn’t really have big tech internship on resume and also just cuz something is quant doesn’t mean it is necessarily good iyk what I mean

[lost current]

I feel most ppl just do cuz it pays a lot new grad at least for top firms so u can get rich quicker

Like being 21/22 making 300-400k+ new grad seems appealing to a lot of ppl

[winged aurora]

theres limited trading firms/funds that pay 300-400k other than the big players

so in many cases the compensation can be the same between big tech and normal quant firms

its just that in the future u can jump into the bigger players and get a bigger pay bump as comapred to staying in tech

[tulip sapphire]

which quant lol

i feel like this only makes sense if it was a bad quant firm

[lost current]

I’ll dm

[tulip sapphire]

ah ya that's like the exact firms i expected lol

you wont have problems getting back into quant haha

[late hedge]

Hello guys, am a recent fresh grad with 1 YOE, SWE, working in mainly Java Backend.

Hoping to transit into a SWE in a HFT or hedge fund, quant is also ok but I think I lack the mathematical knowledge as of now.

Is there anyone here I can pm

Thank you

[winged aurora]

if its normal swe its prolly java but on a framework basis like spring boot

IMC focuses more on core java i think, minus the framework bloats

but they are quite selectice on the background

[broken thorn]

quant has great exits, no matter where u go youre working conditions get better

[tulip sapphire]

So does Headlands

(For QR)

Dev is C++

[long raft]

Source? I only find info about their c++ focus

[tulip sapphire]

Ft told me directly

[spare rover]

Does anyone have any experience with hh from Alexander Chapman? How do they compare to TOG/GTP/similar?

[long raft]

TOG? GTP?

[tulip sapphire]

Options group and Grep

[ocean gazelle]

did u do OA in the past

Ik someone who had smth similar happen to them but they got the offer the prev yr

[tough sand]

I’ve heard bad things about AC

[lost current]

mfw nyc

[ocean gazelle]

they have onsite that they fly u for

i forgot what round/process some friend told me a while ago

swe?

friend was sre

[acoustic sandal]

easiest quant to get into?

[lost current]

belvedere gaps everything

akuna belv to the moon

[lost current]

Jordan BelveGoat

[acoustic sandal]

Janitor

SWE

What’s so easy about it

2sig?

[scenic bison]

hired on the spot!

☺️

[broken thorn]

what the h*ll is a prentiship

[broken thorn]

shut you

[scenic bison]

Hey buddy I don’t like the attitude 😠

[scenic bison]

😦

[late hedge]

Thanks mate. hmm but would u think that if I were to learn c++ probably higher chance

[tulip sapphire]

IMC is primarily java

so no

for some places like google and rentec for example, knowing C++ will def help

[tulip sapphire]

aquatic uses more C++ than python?? this is the first im hearing of that

SIG does that right

but most SWEs there j do dashboard stuff

interns*

I don’t think C++ is that meaningful plus for aquatic if you know python well

research eng and QR both seem to prefer python at aquatic

well actually idk abt research eng

compiler explorer is written in javascript and supports many langs

they have alr filled for research engineer ng ft 2024

like they arent taking any more applicants

it's kinda cooked

2

^

ya like filled in june for the next year is 💀

but that's 2 openings for you

yeah he likely is, im only saying j cuz he's there doenst mean the firm is cpp only

for qt or swe?

ic

for qt i def see that

i could never intern at sig, my ears would break from the yelling at the end of each day

usu they make you yell across trading floor to practice

you can DM

i'd never dox myself here

my friend said he was a quant at radix here once and he got so many DMs he had to quit discord

[storm ember]

is that all it takes

[tulip sapphire]

i mean 500k ng and being elite to like pton and top schools helps

they r currently beating the shit outta Tower in HFT

i think it's closer to ~6-7

surely discord bro can squeeze in

ah yeah youre right

i mean no discord bro is breaking QR

most hard require phd

wait do u have phd

or ru swe or qt

ahh

oh

nice

[tulip sapphire]

it's a reference to the twitter hackers LMAO

it was a meme joke after chaewon said sth to me

https://www.theverge.com/2020/7/31/21349920/twitter-hack-arrest-florida-teen-fbi-irs-secret-service

[broken thorn]

is evercore good for ib

[tulip sapphire]

They renamed to 2024 https://github.com/northwesternfintech/2024QuantInternships

[storm ember]

what does breaking qr mean

and isnt everyone here a discord bro

[stiff girder]

anyone working at jane street wanna give a referral??

[long raft]

Hahaha does Jane steeet even have smth like referrals? 😂😂

[junior lance]

https://tenor.com/view/special-week-gif-25383327

[broken thorn]

cracked and weird are orthogonal

[stiff girder]

no idea lol

[queen sorrel]

Yeah

[queen sorrel]

Watch me

[lost stratus]

who is drooling over radix?

[lost stratus]

does evercore have quant or swe teams

[lost current]

most large banks have quant and swe division, granted i think it's general consesus that banking quant isn't really great in terms of culture

[lost stratus]

what about Evercore specifically

[broken thorn]

for ib thats insane isnt it

or do most eb pay good and its just the goldman sachs jpmcs that pay 150k

id buy it

[queen sorrel]

If it’s base yeah, if incl. bonus then above avg.

[stiff girder]

does anyone know the process for swe internship at de shaw

[lost current]

Yeah

[empty citrus]

Does anyone have an invite to the quant discord

[faint moon]

did they create one again

last one was nuked

[storm ember]

oh so thats that tqd stands for

yea im in it

[queen sorrel]

https://discord.gg/ezMDD5h6

[junior dew]

no u don't

[warped blade]

Hello is their any material to learn quant as a beginner

[obsidian flare]

phd in stats

[charred dock]

What is your background?

I have books in mind but they require a strong math background

well idk actually. Depends on your definition of strong, but I remember this repo: https://github.com/quantopian/research_public

This one might be worth looking into.

[rugged rampart]

bro i remember when that website was real

[charred dock]

me too

rip

[lost current]

Adding on to this
This was a p nice wesbite esp if u like Julia
https://julia.quantecon.org/

[charred dock]

Thanks for the resources.

But yeah plenty of other quant books if you have the background

https://ocw.mit.edu/courses/18-s096-topics-in-mathematics-with-applications-in-finance-fall-2013/pages/syllabus/

This also seemed like a good place to get a cursory glance at some the concepts.

[winged aurora]

anybody beard of macquarie group? they do mainly do commotidy trading

[uncut steeple]

I thought it's an aus boutique IB?

[warped blade]

Economy

[warped blade]

Will enjoy it for sure

[warped blade]

Appreciate thank you

[untold mulch]

i have one question and one question alone

im currently planning on doing CS+Math at ASU (inco freshmen), and considering that its both a non-target and in a location far from most quant firms to my knowledge, what is the best way to network and build my skills/quals to balance those 2 disadvantages out

I live in SoCal so during Winter/Summer periods i'm able to peek around here but outside of TGS i don't think there's any major firms here

no im a god

yea ik

ig but w non-target having ways of hooking outside of just quals would be useful no

referalls, info on job opps, general sources for info and advice

the great community on cscareers.dev shat on me for having a 1500 and not a 1600 sat

/s

but i like having irl connections

no doubt, but the skill bar to get to that scares me

got 4 years to get to that point luckily

Ic

Yea trading or dev is my goal

[fringe flint]

Most common route from asu is SWE in faang -> SWE at quant -> Quant

It’s my dream job too but from asu is too unrealistic to get straight out of college

[untold mulch]

ic, honestly that works for me

[fringe flint]

SWE In faang from asu is already 1%

[untold mulch]

no doubt, but i love the career (and hte money) so gotta make it work somehow

[fringe flint]

What I did was I created my own trading software, I have ~30% return from it over a year

[untold mulch]

1% as in hard as shit? from what I'd seen and heard ASU was p strong for FAANG recruitment

oh nice

[fringe flint]

Only Amazon

[untold mulch]

ah

[fringe flint]

Which is a pretty crappy faang

Microsoft apple Netflix etc are 1% or lower I’d say

[untold mulch]

ic

i got a referral from Micro which helps me get to an interview at leasr

[fringe flint]

Yeah referral is only way

Citadel gives OA to everyone but interview process impossible

[untold mulch]

ic

[fringe flint]

I got their OA as a freshman

[untold mulch]

crazy to hear this though regardless

since my cousin basically hopped from Micro to AMZ

[fringe flint]

Hmm that’s weird

[untold mulch]

iirc its becuase they wanted him to go to seattle

but still

[fringe flint]

Could be an office change or a promotion or a good team

[untold mulch]

yea

[fringe flint]

Good Amazon team > shit Microsoft team

Any day

[untold mulch]

oh yea 100%

what makes amz crappy btw

j pay/work conditions or

[fringe flint]

Long hours for lower pay

[untold mulch]

ah icic

[fringe flint]

They hire 6 trillion engineers for no reason lol

[untold mulch]

lmfao yea

also when should I start going for internships, Im going to take some 200 lvl courses this year but not sure if i'd have enough exp to acc be qualified for soph internships year 1

def, for me at least that rank is more for comparing offers, a job in my field is a job in my field

[fringe flint]

I only know 4 people at asu who got internship freshman year

[untold mulch]

hmm

ye

[untold mulch]

i need to spam email profs regardless, im enroll-locked till my APs come out in July

and most of my accelerated courses are alr full

[fringe flint]

Profs kinda useless, spam email your uncles and dads friends instead

[untold mulch]

nah i meant to get my courses

[fringe flint]

Dads friends are OP

[untold mulch]

like rn all my non-first year courses i can't reg in till my Calc BC credit comes

and they've alr filled bc of that

[untold mulch]

dad works in wholesale but is having me build an e-com app for their company that we can potentially sell to them

so he's more my source for projs

still good tho

yea ik but to one degree i want to make sure i have my bases covered

and on the other hand worrying will keep me in check lol

[tulip sapphire]

W

[lost current]

at least it's not uga

[fringe flint]

thats tough

[untold mulch]

A good one

[lost current]

oh some kid that used to go to georgia tech and worked with career center for mentorship program showed us this

[untold mulch]

i wouldnt know

https://tenor.com/view/dog-chattering-teeth-scared-spooky-gif-22755553

[lost stratus]

did any of them apply as a junior

[neat junco]

Does cubist call to reject

For pm team process

[winged aurora]

no

[neat junco]

Ah great to know! Thanks

[quasi orbit]

if an interivewer lets u pick any language for an interview, do they dislike it if you pick python (esp for quant companies)

[tulip sapphire]

is this ng?

cg if so!

[long raft]

And do they call to reject?

[neat junco]

It’s general hiring

[neat junco]

Scheduled for tmr

[neat junco]

If it’s not for low latency position it should be fine

[lost current]

think it's fine cuz a lot of times

idea is more important

than language chosen

[winged aurora]

i think even if its low latency some firms dont enforce language selection for fresh grads

like optiver, HRT etc

cuz in a lot of these firms the fresh grads go through a training phase to get up to speed with c++ cuz its not hard to get started when u are technically inclined

[dry plinth]

Languages are trivial to learn so these firms really have no reason to care

On the other hand, problem solving skills are not trivial to learn

[tulip sapphire]

HRT enforces it and ik 2 years back opt asked to do their tree q for newgrads in java only (or python wasnt an option at the least)

[rose holly]

They do enforce language

[tulip sapphire]

I don’t think this is true for C++ and hft cpp firms

[cyan sparrow]

:pandayay:

[dry plinth]

As bloated as C++ is, I don't think learning it can't be done on the job

I could also be wrong

[tulip sapphire]

I mean firms (Like rentec, ansatz, headlands, radix, etc) who want performant standard compliant cpp exist

That definitely cannot be done on the job and they will ask you about cpp internals

You will not pass unless you know cpp very well

[dry plinth]

I see

[lyric loom]

dn

[ocean gazelle]

hows ur headlands process going rn

[lost current]

U going new grad?

[winged aurora]

hmmm i did hrt interview for dev i could choose python

maybe its not standardized

headlands is pretty interesting, i know a senior who pivoted to headlands after working at an SEA ecommerce firm for about 2 years after grad

she picked up C++ along the way

[tulip sapphire]

Algo dev is ofc Python since they don’t write cpp

Core SWEs write the most cpp

(Usually)

[charred dock]

Yeah, so there are a bunch. I think they are mostly theory though. Based on what I've read, most quant firms don't even care if you have a background in finance.

But there are some that I've been meaning to go through

https://www.google.com/books/edition/Tools_for_Computational_Finance/n9IxDwAAQBAJ?hl=en&gbpv=1&dq=tools+for+computational+finance&printsec=frontcover

https://www.google.com/books/edition/Stochastic_Calculus_for_Finance_II/O8kD1NwQBsQC?hl=en&sa=X&ved=2ahUKEwiW2q742NH_AhVNkokEHc6FA48QiqUDegQICxAC

https://www.google.com/books/edition/Mathematical_Finance/vZnBDwAAQBAJ?hl=en&gbpv=0

https://www.google.com/books/edition/Arbitrage_Theory_in_Continuous_Time/qMLADwAAQBAJ?hl=en&gbpv=1&dq=arbitrage+theory+in+continuous+time&printsec=frontcover

If you are interested in this sort of theory, courses like linear algebra, probability theory, and basic stochastic processes are probably a good foundation.

idk I'm not an expert though. Don't trust my recs too much tbh.

[ocean gazelle]

I’ll dm u abt it 1 sec

[neat junco]

hrt did enforce c++

but depending on roles i think

algo eng/algo dev should be fine

[storm ember]

do u have to do hard leetcode type problems before getting to the fun riddles in interviews or do some places let u just do math problems

can i just have someone else do mine for me. will they quiz me on it later

idc about coding i just wanna solve fun problems

oh idc about quant i was just gonna apply for fun

i have no real stake in the process

yea those are fun ive done a few

the monthly ones right

they have a dedicated puzzlemaster role it's pretty cute

making puzzles

well some of them are just like solving a system of 20 equations and you can do it by hand but its pretty cringe to do so

the sudoku variants are nice to do on public transpo

what math u wanna study

[winged aurora]

I interviewed for a full stack role, it was react and python 😂

interviewer asked which language I prefer

[rose holly]

HRT = CRUD

[neat junco]

Neither

In turn some dude was asking some of my preferences

Sounds like a brief catch-up after onsite

[long raft]

Preferences for?

[tough sand]

How hard are lc type interviews at hft firms in general for SWE roles? Do they mostly put emphasis on class design type problems/OS/networks or do they also ask harder lc concepts like DP? Grinding LC rn and reviewing cpp, os, networks concepts so not sure whether to go full on hardcore on LC

[neat junco]

project and tech stack alignments etc.

[stiff girder]

LC medium to hard

[neat junco]

Does gpa matter less if one has hft intern/ft experience?

[tulip sapphire]

I guess you haven’t seen Reddit

[uncut steeple]

qt sequence from oa:

can't figure these out

[dry plinth]

y coordinates of integer x coordinates of the following functions, assuming the first term starts at x = 1:
y = -(71 x^5)/720 + (89 x^4)/48 - (1891 x^3)/144 + (677 x^2)/16 - (21157 x)/360 + 179/6
y = -(39 x^5)/400 + (271 x^4)/160 - (3971 x^3)/360 + (3187 x^2)/96 - (162949 x)/3600 + 221/10

(Probably not what they were looking for?)

It's simple linear algebra

[tulip sapphire]

https://www.reddit.com/r/quant/comments/14er2gn/inside_the_escalating_feud_at_one_of_wall_streets/

[uncut steeple]

ha

[uncut steeple]

how did you do this

[dry plinth]

Well it's just a system of linear equations

For the first one:

• a(1)^5 + b(1)^4 + c(1)^3 + d(1)^2 + e(1) + f = 2
• a(2)^5 + b(2)^4 + c(2)^3 + d(2)^2 + e(2) + f = 3
• a(3)^5 + b(3)^4 + c(3)^3 + d(3)^2 + e(3) + f = 6
• a(4)^5 + b(4)^4 + c(4)^3 + d(4)^2 + e(4) + f = 5
• a(5)^5 + b(5)^4 + c(5)^3 + d(5)^2 + e(5) + f = 3
• a(6)^5 + b(6)^4 + c(6)^3 + d(6)^2 + e(6) + f = 1/6

So you could use something like Gaussian elimination

[uncut steeple]

that's interesting

18 actually makes sense for the first

[dry plinth]

😂

[uncut steeple]

if it's not too much can you try for

[summer stratus]

looks like 1/2?

[uncut steeple]

for the polynomial curve fitting

also ans is not 1/2 I believe

[dry plinth]

It looks like 5/8, I'll do the polynomial thing though

[summer stratus]

oh right, the rate of change is way too small. i pulled it out of my ass seeing 1 3/4 2/3 hahaha

[dry plinth]

(3 + x) / (2 + 2x)

[summer stratus]

is it an mcq type oa? @uncut steeple

[uncut steeple]

yes

[uncut steeple]

did you fit this before knowing 5/8

[dry plinth]

Nope

I'm fitting it now though

[summer stratus]

checks out

woah thats pree fast

[dry plinth]

Yeah fitting doesn't get 5/8

[uncut steeple]

D:

[summer stratus]

what's fitting?

[dry plinth]

Just using linear algebra to find a polynomial which passes through certain points in this case

[summer stratus]

ah

[dry plinth]

Makes sense though since it's not a polynomial pattern

[uncut steeple]

hm

[dry plinth]

What are the choices?

[uncut steeple]

I didn't write it down

[dry plinth]

Ah rip

[uncut steeple]

but its 5/8

[dry plinth]

I meant for the other two

[uncut steeple]

oh

yeah don't havve

[dry plinth]

😦

[winged aurora]

anybody know if maven securities Chicago office is good

[mint blaze]

how did you guys learn the sequence stuff?

[neat junco]

it's not tier 1 but not bad imo

they really have a passion in template stuff

[dry plinth]

Never learned

[storm ember]

these sequences look dumb as hell

i got these questions in grade 2

whats the point. you can fit them to anything you want

[uncut steeple]

agree

[dry plinth]

Yeah that's why I used polynomials 😂

[storm ember]

😂

[storm ember]

the second one if you really want to assign a pattern to it you can say its -1/2, +2/3, -3/4, +4/5, -5/6, next one would be +6/7

[dry plinth]

[storm ember]

its more obvious when you put them under a common denominator

[dry plinth]

I was only really looking at the first and assumed the second would be something stupid

[uncut steeple]

legendary @storm ember

[tulip sapphire]

Like cpp templates?

[neat junco]

Yea and meta programming

Especially

[tulip sapphire]

based

[tulip sapphire]

why not 1/18?

[broken thorn]

....does this solve like every sequence lmao?

[dry plinth]

Only polynomial ones

Ideally some coefficients turn out to be 0

Otherwise it's almost certainly overfitting and non-polynomial

[storm ember]

it does in a very crude sense in that it shows that all sequence questions are completely arbitrary

[dry plinth]

It'd solve stuff like 1, 4, 9, 16 without any issues, but it just overfits on others

[storm ember]

it specifically fits to a uniue polynomial of degree n-1, where you have n terms given

chances are this in fact not what they're looking for

[dry plinth]

And to show that it's arbitrary, you can just pick any next point and fit a polynomial through that

I.e. the next value can be whatever you want

[broken thorn]

yeye u can fit anything with anything

i dont think the questions are completely arbitrary tho cuz its assumed the most clean answer is prob correct

u can also argue almost any answer is correct on those iq test matrices too if u make up convoluted rules for them

[magic swan]

you can argue that any answer is correct, intended is to find some rule like rotations or flips but you can also define rules by a sequence

[rose holly]

Why does these companies have 10+ rounds of interviews 🙃